2024-03-29T14:49:12Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1267822016-02-18T03:32:50Zcom_10261_10252com_10261_3col_10261_10253
2015-12-14T10:08:54Z
urn:hdl:10261/126782
An integrated phenol 'sensoremoval' microfluidic nanostructured platform
Mayorga-Martínez, Carmen C.
Hlavata, Lenka
Miserere, Sandrine
López-Marzo, Adaris M.
Labuda, Jan
Pons, Josefina
Merkoçi, Arben
VEGA Agency (Slovakia)
Ministerio de Ciencia e Innovación (España)
Generalitat de Catalunya
Phenol sensoremoval
Chrono-impedance technique
CaCO3-PEI microparticles
Phenol is a widely used chemical that for several reasons may be released into the environment and, consequently, its detection and subsequent destruction into the ground and surface waters are of special importance. Herein, a simple lab-on-a-chip (LOC) device based on biocompatible and biodegradable CaCO3- poly(ethyleneimine) (PEI) nanostructured microparticles (MPs) to detect and remove phenolic wastes is proposed. The detection of phenol using a hybrid polydimethylsiloxane (PDMS)/glass chronoimpedimetric microchip and its removal in the same LOC system through the use of an extra CaCO3-PEI MPs microcolumn is achieved. For the first time, the chronoimpedance technique is applied in a LOC system for phenol sensing in a range of 0.01-10µM achieving the limit of detection (LOD) of 4.64nM. Moreover, this device shows a high repeatability with a relative standard deviation of 3% which is almost 4 times lower than that for the chronoamperometry technique. This LOC system represents an integrated platform for phenol sensing and removal (sensoremoval) that can be easily fabricated and is of a low cost, disposable and amenable to mass production.
2015-12-14T10:08:54Z
2015-12-14T10:08:54Z
2014
2015-12-14T10:08:54Z
artículo
Biosensors and Bioelectronics 55: 355-359 (2014)
http://hdl.handle.net/10261/126782
10.1016/j.bios.2013.12.035
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100002809
eng
Sí
closedAccess
Elsevier